Influenza Vaccine Recommendations for Adults
Age-Based Recommendations
- The Advisory Committee on Immunization Practices (ACIP) recommends preferential use of higher-dose or adjuvanted influenza vaccines for adults 65 years and older 2
- Fluzone High-Dose (HD-IIV4) is specifically licensed only for adults aged 65 years and older 1, 2
- For adults under 65 years of age, standard-dose influenza vaccines are recommended 1
- The high-dose influenza vaccine contains a higher amount of hemagglutinin per vaccine virus compared to standard-dose vaccines 3, 2
Evidence Supporting Age-Based Recommendations
- Fluzone High-Dose met prespecified criteria for superior efficacy compared to standard-dose influenza vaccine in a randomized trial conducted among persons aged 65 years and older 4
- The Centers for Disease Control and Prevention (CDC) does not recommend high-dose influenza vaccine for adults under 65 years 1
Special Circumstances for High-Dose Vaccine in Younger Adults
- Patients with certain medical conditions aged 18-64 years who are taking immunosuppressive medication may benefit from high-dose influenza vaccines 1, 2
- Certain transplant recipients aged 18-64 years who are receiving immunosuppressive medications may also benefit from high-dose vaccines 1, 2
Practical Approach to Vaccine Selection
- For a patient who has just turned 65, Fluzone High-Dose is appropriate and recommended 4, 3, 2
- For patients under 65 without specific risk factors, standard-dose influenza vaccine should be used 1
- Vaccination should not be delayed if only standard-dose vaccine is available, as any influenza vaccine is preferred over no vaccination 2